a. Show that (2 + 5 x) 2 can be written as 4 + kx + 25x,

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a. Show that (2 + 5 √x)² can be written as 4 + k√x + 25x, where k is a constant to be found.

b. Hence find ∫(2 + 5 √x)² dx.

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Edexcel AS And A Level Mathematics Pure Mathematics Year 1/AS

ISBN: 9781292183398

1st Edition

Authors: Greg Attwood

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Question Posted: Jul 15, 2023 04:11 AM

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a. Show that (2 + 5 x) 2 can be written as 4 + kx + 25x,

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a T o expand the expression 2 5x2 we can use the formula for expanding a binomia...View the full answer

Edexcel AS And A Level Mathematics Pure Mathematics Year 1/AS

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